Draft Environmental Impact Report
List of Tables
List of Tables
Table 1-1—South Station Site / Land Use ............................................................................................. 1-4
Table 1-2—SSX Project Alternatives Dismissed from Further Consideration ....................................... 1-8
Table 1-3—Environmental Impacts, Joint/Private Development Alternatives..................................... 1-9
Table 1-4—Environmental Impacts, Layover Facility Site Alternatives ................................................ 1-12
Table 1-5—Required State Agency Permits .......................................................................................... 1-15
Table 1-6—Required Federal Agency Permits ...................................................................................... 1-16
Table 1-7—Required Local Permits and Approvals............................................................................... 1-16
Table 2-1—Amtrak NEC Service On-Time Performance Trends ........................................................... 2-5
Table 2-2—MBTA Commuter Rail Service On-Time Performance Trends ............................................ 2-5
Table 3-1—Track Configuration Tier 1 Screening, Constrained Rail Alternatives 1 through 4 ............. 3-10
Table 3-2—Alternative 2 – Joint/ Private Development Minimum Build Land Use Program .............. 3-17
Table 3-3—Alternative 2 – Joint/ Private Development Minimum Build Building Sizes ...................... 3-17
Table 3-4—Alternative 3 – Joint/ Private Development Maximum Build Land Use Program .............. 3-18
Table 3-5—Alternative 3 – Joint/ Private Development Maximum Build Building Sizes...................... 3-18
Table 3-6—Proposed Transportation Improvements at the South Station Site................................... 3-18
Table 3-7—Comparison of Joint/Private Development Alternatives at the South Station Site ........... 3-19
Table 4-1— South Station Open Space Compliance ............................................................................. 4-19
Table 4-2—Comparison of South Site Build Alternatives with Chapter 91 Requirements for NonwaterDependent Use Projects .................................................................................................... 4-21
Table 4-3—Consistency of SSX Project with Applicable Massachusetts Coastal Zone Management
Policies ............................................................................................................................... 4-23
Table 4-4—Proposed South Station Site Land Cover, by SSX Project Alternative ................................ 4-28
Table 4-5—Proposed South Station Flow Rates and Runoff vs. No Build Conditions .......................... 4-28
Table 4-6—Summary of Potential Water Quality Impacts at SSX Project Sites.................................... 4-35
Table 4-7—Applicability of Potential Mitigation Measures at SSX Project Sitesa ................................ 4-37
Table 4-8—SSX Project Compliance with Massachusetts Stormwater Standards ............................... 4-39
Table 4-9—Proposed Estimated Wastewater Generation at South Station Site ................................. 4-43
Table 4-10—Proposed Estimated Wastewater Generation for Widett Circle ...................................... 4-44
Table 4-11—Proposed Estimated Wastewater Generation for Beacon Park Yard............................... 4-46
Table 4-12—Proposed Additional Estimated Wastewater Generation for Readville – Yard 2............. 4-48
Table 4-13—Existing Conditions Daily Combined South Station Boardings and Alightings, 2012 ....... 4-52
Table 4-14—Amtrak Service at South Station ...................................................................................... 4-53
Table 4-15—Existing Weekday MBTA Commuter Rail Boardings and Alightings at South Station ...... 4-53
Table 4-16—Existing Weekday MBTA Bus Rapid Transit Boardings and Alightings at South Station .. 4-54
Table 4-17—Existing Weekday MBTA Local Bus Boardings and Alightings at South Station ............... 4-54
Table 4-18—2025 Daily Combined South Station Boardings and Alightings ........................................ 4-55
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Massachusetts Department of Transportation
October 2014
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List of Tables
Draft Environmental Impact Report
Table 4-19—2035 Daily Combined South Station Boardings and Alightings ......................................... 4-56
Table 4-20—Existing Conditions South Station Area Intersections – Levels of Service......................... 4-62
Table 4-21—South Station Area Intersections - Levels of Service, 2025/2035 ..................................... 4-66
Table 4-22—Project-related Pollutant Emissions at the South Station Site, Existing Conditions ......... 4-69
Table 4-23—Project-related Pollutant Emissions at the Readville - Yard 2 Site, Existing Conditions ... 4-69
Table 4-24—Estimated Maximum 1- and 8-Hour CO Concentrations at the South Station Site Vicinity,
Existing Conditions............................................................................................................ 4-70
Table 4-25—Estimated Maximum 1- and 8-Hour CO Concentrations at the Layover Facility Sites, Existing
Conditions ......................................................................................................................... 4-71
Table 4-26—Summary of Project-related Criteria Pollutant Emissions at the South Station Site, Project
Alternatives ....................................................................................................................... 4-71
Table 4-27—Summary of Project-related Criteria Pollutant Emissions at the Layover Facility Sites, Project
Alternatives ....................................................................................................................... 4-72
Table 4-28—Estimated Maximum 1- and 8-Hour CO Concentrations at the South Station Site, Project
Alternatives ....................................................................................................................... 4-73
Table 4-29—Estimated Maximum 1- and 8-Hour CO Concentrations at the Layover Facility Sites, Project
Alternatives ....................................................................................................................... 4-74
Table 4-30—Summary of Estimated VOC and PM2.5 Emissions in the Vicinity of the South Station Site....
............................................................................................................................................................... 4-75
Table 4-31—Existing Measured Noise Levels at South Station Site and Vicinity................................... 4-78
Table 4-32—Existing Measured Noise Levels at the Layover Facility Sites............................................ 4-79
Table 4-33—Calculated South Station Site Stationary Source GHG Emissions ..................................... 4-83
Table 4-34—Alternative 3 Water- and Wastewater-Related GHG Emissions, South Station Site ........ 4-83
Table 4-35—Project-Related CO2 Emissions at South Station by Alternative (tpy) .............................. 4-84
Table 4-36—Project-Related CO2 Emissions at Each Layover Facility Site by Alternative (tpy)............ 4-85
Table 4-37—2035 Net Project- Related CO2 Emissions by Alternative ................................................. 4-85
Table 4-38—2035 Potential GHG Emissions Summary .......................................................................... 4-86
Table 4-39—Proposed Building Mitigation Conservation Measures..................................................... 4-87
Table 4-40—Historic Resources within the South Station APE.............................................................. 4-91
Table 4-41—Historic Resources within the Readville – Yard 2 APE ....................................................... 4-93
Table 4-42—2009 South Station Study Area Demographic Data ........................................................ 4-109
Table 4-43—2035 South Station Study Area Demographic Projections .............................................. 4-110
Table 4-44— South Station Study Area Demographic Changes, 2009 - 2035, Total and Percent ....... 4-110
Table 4-45—Population Trends, Layover Facility Study Areas, 2000-2010 ......................................... 4-112
Table 4-46—Comparison of 2035 South Station Demographic Data .................................................. 4-115
Table 4-47—Percentages by Population and Area of SSX Project Study Areas Meeting Environmental
Justice Criteria................................................................................................................. 4-118
Table 4-48—Race and Ethnicity Characteristics in SSX Project Study Areas, 2010 ............................. 4-118
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Massachusetts Department of Transportation
Draft Environmental Impact Report
List of Tables
Table 5-1—Consistency with MassDOT’s GreenDOT Implementation Plan ............................................ 5-8
Table 5-2—Risks and Mitigation Strategies Associated with Hurricane Surge and Sea Level Rise ....... 5-28
Table 8-1—MEPA Decisions on the South Station Site ............................................................................ 8-2
Table 8-2—Required State Agency Actions ............................................................................................. 8-3
Table 8-3—Table of SSX Project Mitigation Commitments ................................................................... 8-12
Table 9-1—MEPA Certificate ............................................................................................................... 9-233
Table 9-2—Public Officials/Agencies/Facilities .................................................................................... 9-246
Table 9-3—Non-Governmental Organizations/Businesses/Individuals .............................................. 9-262
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Massachusetts Department of Transportation
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List of Tables
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South Station Expansion
Massachusetts Department of Transportation